Transmutations observed from pressure cycling palladium

Available online 2 October 2020

Transmutations observed from pressure cycling palladium silver metals with deuterium gas

Highlights

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Surface transmutations occurred in deuterium gas cycling experiments of PdAg tubes.

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Zn and Cr not present in PdAg before experiments were observed on PdAg afterwards.

Abstract

Hydrogen, deuterium, and helium gases were separately cycled through a Johnson-Matthey purifier containing coiled palladium silver alloy tubing: Pd25Ag (75 wt% Pd and 25 wt% Ag). During the cycling of D₂ gas, evidence of anomalous heat production was observed. However, during the cycling of H₂ and He, very little (H₂) or no (He) unusual heat events were observed. After cycling the D₂ gas through the coiled tubing for several months, Pd25Ag samples showed an increase in Cu and Fe compared with the amounts in unexposed Pd25Ag. Chromium, manganese, and zinc were detected in gas-cycled Pd25Ag samples, whereas they were not detected in unexposed Pd25Ag samples. In particular, Zn was present in the gas-cycled Pd25Ag material in larger quantities than either Cr or Mn. Although a small amount of Cu was present in the Pd25Ag coil before the D₂ gas cycling, 7 times more was present after the cycling. Multiple material characterization techniques were used to obtain both pre-test and post-test elemental composition. The results indicate that novel post-test elements, primarily on the surface, were created by unknown nuclear mechanisms at low energy.

Keywords

Deuterium gas cycling

Palladium silver alloy

Elemental transmutations

Anomalous heating

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Published by Elsevier Ltd on behalf of Hydrogen Energy Publications LLC.

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